| Isothermal section at 927℃ of Cr-Ni-Ti system |
| |
| 引用本文： | 谭永恒,徐洪辉,杜勇.Isothermal section at 927℃ of Cr-Ni-Ti system[J].中国有色金属学会会刊,2007,17(4):711-714. |
| |
| 作者姓名： | 谭永恒 徐洪辉 杜勇 |
| |
| 作者单位： | State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China |
| |
| 基金项目： | Project（50425103） supported by the National Science Fund for Distinguished Young Scholars of China; Project（50571114） supported by the National Natural Science Foundation of China |
| |
| 摘 要： | The isothermal section at 927℃ of the Cr-Ni-Ti system was established using a high-efficiency diffusion couple approach, supplemented with eight equilibrated alloys. The alloy compositions were selected on the basis of the experimental results from the diffusion couple. Both the diffusion couple specimens and the alloys were examined by means of optical microscopy, scanning electron microscopy, and electron probe microanalysis. No ternary compound is found at 927℃. The following five three-phase equilibria are well determined： TiNi3＋（Cr）＋（Ni）, TiNia＋（Cr）＋TiNi, TiNi＋（Cr）＋Cr2Ti, Ti2Ni＋Cr2Ti＋TiNi and Ti2Ni＋Cr2Ti＋（Ti）. The solubilities of Cr in NiTi2, NiTi, and Ni3Ti are determined to be 7.5%, 14.5% and 11.4% （molar percent）, respectively, α-Cr2Ti and β-Cr2Ti dissolve about 9.2% and 13.9% Ni （molar percent）, respectively.
|
| 关 键 词： | 铬镍钛系统 相图 等温截面 温度扩散 |
| 收稿时间： | 18 April 2006 |
| 修稿时间： | 2006-04-182007-06-29 |
Isothermal section at 927 °C of Cr-Ni-Ti system |
| |
| TAN Yong-heng,XU Hong-hui,DU Yong,.Isothermal section at 927 °C of Cr-Ni-Ti system[J].Transactions of Nonferrous Metals Society of China,2007,17(4):711-714. |
| |
| Authors: | TAN Yong-heng XU Hong-hui DU Yong |
| |
| Affiliation: | State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China |
| |
| Abstract: | The isothermal section at 927 °C of the Cr-Ni-Ti system was established using a high-efficiency diffusion couple approach, supplemented with eight equilibrated alloys. The alloy compositions were selected on the basis of the experimental results from the diffusion couple. Both the diffusion couple specimens and the alloys were examined by means of optical microscopy, scanning electron microscopy, and electron probe microanalysis. No ternary compound is found at 927 °C. The following five three-phase equilibria are well determined: TiNi3+(Cr)+(Ni), TiNi3+(Cr)+TiNi, TiNi+(Cr)+Cr2Ti, Ti2Ni+Cr2Ti+TiNi and Ti2Ni+Cr2Ti+(Ti). The solubilities of Cr in NiTi2, NiTi, and Ni3Ti are determined to be 7.5%, 14.5% and 11.4% (molar percent), respectively. α-Cr2Ti and β-Cr2Ti dissolve about 9.2% and 13.9% Ni (molar percent), respectively. |
| |
| Keywords: | Cr-Ni-Ti ternary system phase diagram diffusion EPMA |
| 本文献已被 维普 ScienceDirect 等数据库收录！ |
|
